This PM2.5 sampler is capable of mass concentration measurements of microscopic particulate matter (PM2.5) using a filter, based on the standard measurement method designated by the Japanese Ministry of the Environment.
\nWith this sampler, airborne particles in environmental air are aspirated in at a constant flowrate via a suction port. PM2.5 particles passed through an impactor are then collected on a filter. Suction flowrate changes are minimized by a constant flowrate unit equipped with temperature and air pressure correction features, so the particle separation characteristics of the impactor are kept constant. The temperature of the filter unit is controlled so that it is always within 5\u00a0\u2103 of the external air temperature. This prevents revaporization of volatile matter contained in the PM2.5 particle sample. <\/p>\n
\u25cf The particle size separator used is compliant with the standard measurement method designated by the Japanese Ministry of the Environment.
\n\u25cf The constant flowrate unit keeps the suction flowrate constant, thus maintaining the particle separation characteristics of the impactor.
\n\u25cf It automatically corrects the suction flowrate for changes in the external air temperature or air pressure (actual flowrate control).
\n\u25cf It maintains a stable suction flowrate even with increases in filter pressure loss.
\n\u25cf The timer feature enables the user to set the sampling start time and stop time.
\n\u25cf The flowrate, time, temperature, and pressure are displayed.
\n\u25cf It is capable of storing (logging) measurement values, for processing on a computer. (A separate communication cable with software is required.)
\n\u25cf If a power outage causes a temporary stop, or problems with the flowrate or filter temperature occur, the time of the occurrence is recorded.
\n\u25cf The exterior has a urethane coating.<\/p>\n","protected":false},"excerpt":{"rendered":"
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